Cubist Systematic Strategies’s Interactive Brokers IBKR Stock Holding History

Cubist Systematic Strategies’s Portfolio IBKR Stock Details IBKR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	$14.7M	Buy	213,100 +66,600	+45%	+$4.19M	0.07%	394
2025 Q2	$8.12M	Sell	146,500 -51,100	-26%	-$2.42M	0.04%	725
2025 Q1	$8.18M	Sell	197,600 -50,000	-20%	-$2.48M	0.05%	597
2024 Q4	$10.9M	Buy	247,600 +156,800	+173%	+$6.6M	0.07%	424
2024 Q3	$3.16M	Sell	90,800 -59,200	-39%	-$1.83M	0.02%	1133
2024 Q2	$4.6M	Buy	150,000 +70,800	+89%	+$2.11M	0.03%	830
2024 Q1	$2.21M	Buy	79,200 +11,600	+17%	+$289K	0.01%	1571
2023 Q4	$1.4M	Buy	67,600 +22,800	+51%	+$467K	0.01%	1791
2023 Q3	$969K	Buy	+44,800	New	+$997K	0.01%	1902

Other funds holding IBKR

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

CCM

Cantillon Capital Management New York $15.1B AUM 23.54% 1-Year Est. Return

Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

GWM

Greenwich Wealth Management Greenwich, Connecticut $2.45B AUM 39.53% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

OAG

Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Cubist Systematic Strategies's IBKR Position: Q2 2025 in Review

Cubist Systematic Strategies sold out of Interactive Brokers (IBKR) in Q2 2025, closing a stake of 43,528 shares — an estimated $2.07M sold.

Cubist Systematic Strategies first reported a position in IBKR in Q4 2014 and held it in 27 quarters. The position peaked at $16.5M in Q1 2023. 802 funds tracked by Wall St. Rank hold IBKR as of Q2 2025.

Cubist Systematic Strategies reported no remaining Interactive Brokers position as of Q2 2025 after selling out during the quarter.
Cubist Systematic Strategies sold 43,528 Interactive Brokers shares in Q2 2025, an estimated $2.07M.
Cubist Systematic Strategies first reported a position in Interactive Brokers in Q4 2014 and held it in 27 quarters.
Cubist Systematic Strategies's Interactive Brokers position peaked at $16.5M in Q1 2023.
802 funds tracked by Wall St. Rank held Interactive Brokers as of Q2 2025.

Based on Cubist Systematic Strategies's 13F filing for Q2 2025, filed 14 Aug 2025.